Which syringe size is recommended for flushing small-bore feeding tubes?

• A. 20 mL or smaller
• B. 60 mL
• C. 10 mL
• D. 5 mL

Answer: (A)

Small-bore feeding tubes are delicate and can be damaged or cause reflux if flushed with too much pressure. Using a syringe that is 20 mL or smaller keeps the flushing force gradual and controllable, reducing the risk of high peak pressures that could dislodge the tube, cause backflow, or irritate the gastric tract. A 60 mL syringe can deliver much higher pressures when you push, which is why it’s not ideal for small-bore tubes. While very small syringes (like 5 or 10 mL) could also be used, the standard guidance emphasizes not exceeding 20 mL to maintain safety and patency, making 20 mL or smaller the best choice.